Table 2-2. Jumpers (continued)
Jumper
Default Position
Description
JMP5
Short 1 to 2
AEQENZ/SDA.
If TUSB1142 is configured for I2C mode (MODE pin (JMP13)) is floating, then jumper is
data for local I2C.
If TUSB1142 is configured for pin-strap mode, then jumper selects whether AEQ is
enabled or not.
•
Short 1 to 2: AEQ disabled.
•
Short 3 to 4: AEQ enabled.
JMP6
Open
SSEQ1/A1.
If TUSB1142 is configured for I2C mode (MODE pin (JMP13)) is floating, then this jumper
along with JMP6 will select the 7-bit I2C target address. Refer to TUSB1142 data sheet
for details on available I2C target address options.
If TUSB1142 is configured for pin-strap mode, then this jumper along with JMP6 selects
EQ settings for SSTX receivers. Refer to TUSB1142 data sheet for details on EQ settings.
JMP7
Open
SSEQ0/A0.
If TUSB1142 is configured for I2C mode (MODE pin (JMP13)) is floating, then this jumper
along with JMP5 will select the 7-bit I2C target address. Refer to TUSB1142 data sheet
for details on available I2C target address options.
If TUSB1142 is configured for pin-strap mode, then this jumper along with JMP5 selects
EQ settings for SSTX receivers. Refer to TUSB1142 data sheet for details on EQ settings.
JMP8
Open
EQCFG.
If TUSB1142 is configured for I2C mode (MODE pin (JMP13)) is floating, then this jumper
must be left floating for normal operation.
If TUSB1142 is configured for pin-strap mode, then this jumper will select EQ options for
SSTX receiver and CRX receivers. Refer to TUSB1142 data sheet for details.
JMP9
Open
AEQCFG.
Selects upper limit for AEQ. Refer to TUSB1142 data sheet for details.
JMP10
Open
CEQ1.
If TUSB1142 is configured for pin-strap mode, then this jumper along with JMP10 selects
EQ settings for CRX receivers. Refer to TUSB1142 data sheet for details on EQ settings.
JMP11
Open
CEQ0.
If TUSB1142 is configured for pin-strap mode, then this jumper along with JMP10 selects
EQ settings for CRX receivers. Refer to TUSB1142 data sheet for details on EQ settings.
JMP12
Short 1 to 2
MODE.
Selects between pin-strap and I2C mode. The default is pin-strap mode.
•
Short 1 to 2: Pin-strap mode
•
Open: I2C mode.
JMP13
Open
VIO_SEL.
Selects whether local I2C interface is at 1.8 V or 3.3 V signalling levels. The default is 3.3
V. Short pins 1 and 2 to select 1.8 V.
JMP14
Open
SLP_S0#.
JMP15
Short 3 to 4
EN.
The EN will enable or disable the TUSB1142.
By default this jumper is configured for confrim from U2
JMP16
Open
TPS25820 CHG pin.
Used to select between standard USB or 1.5-A Type-C current sourcing ability.
JMP17
Open
TPS25820 Faultz pin.
Used to montior fualt condition on USB Type-C receptacle VBUS.
JMP18
Open
TPS25820 EN pin.
Logic input to turn TPS25820 (U2) device on and off
JMP19
Open
Power for TUSB1142.
Selects whether TUSB1142 is powered from VBUS or 5 V barrel jack. The default is
power from USB VBUS. Shorting between position 1 and 2 will select the 5 V barrel jack.
JMP20
Open
The local I2C voltage pull-up option. The default is local I2C pull-ups are connected to
TUSB1142's 3.3 V VCC supply. Removing R47 allows for feeding external DC supply for
local I2C.
Hardware Configuration
4
TUSB1142 EVM User's Guide
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